Atrail is of a mile long. abdul hiked of the length of the trail. which steps could be used to determine how far he hiked, in simplest terms? check all that apply.

The problem above may be solved through the concept of conservation of momentum such that, 
                                      m₁v₁ = m₂v₂
Substituting the given from the problem above,
                                  (0.145 kg)(20 m/s) = (0.145 kg + 120 kg)(v₂)
                                     v₂ = 0.024 m/s
Therefore, the answer is 0.024 m/s.